Sodium hypochlorite generator

The invention relates to the field of disinfection and sterilization of water in outdoor massage bathtubs, hot tub and swimming pools, in particular to a sodium hypochlorite generator.

In modern life, sodium hypochlorite prepared by electrolyzing a sodium chloride solution through an electrochemical technique is used to sterilize swimming pools, hot tub or bathtubs, disinfectants prepared through the electrochemical technique are generally electrolyzed-oxidizing water (EOW) which are non-toxic, environmentally friendly and good in disinfection and sterilization performance. When sodium hypochlorite is prepared through the electrochemical technique, a sodium hypochlorite generator is used. Due to the fact that the sodium hypochlorite generator is placed in water for a long time, it should have extremely high sealing and waterproofing performance. Moreover, the electrodes of the sodium hypochlorite generator, as consumables, cannot be used for a long time and need to be changed frequently, and it is difficult to change the electrodes underwater. In the prior art, the electrodes of the sodium hypochlorite generator used in swimming pools, hot tub or bathtubs are changed by dragging an electrode insert out of water through a long cable pre-buried in an interior space of the sodium hypochlorite generator. However, when the electrodes are changed in this way, a large interior space has to be reserved in the sodium hypochlorite generator in order to store the cable, which makes the sodium hypochlorite generator large in size and unaesthetic; and due to the extremely high waterproofing requirements for the sodium hypochlorite generator, the manufacturing cost is high, potential safety hazards may be caused, and it is quite inconvenient to change the electrodes. So, a novel sodium hypochlorite generator is needed.

In view of the defects of large size, difficulty in change of vulnerable parts and extremely high waterproofing requirements of existing sodium hypochlorite generators, the invention provides a sodium hypochlorite generator based on wireless power transmission.

The present disclosure provides a sodium hypochlorite generator which comprises an electrode insert and a base. The electrode insert comprises an insert body and a predetermined number of electrodes installed on the insert body. A wireless power emitting device is disposed in the base, a wireless power receiving device is disposed in the insert body and is electrically connected to the electrodes so that an external power supply is capable of driving the electrodes to perform electrolysis through the wireless power emitting device and the wireless power receiving device.

In some embodiments, the wireless power emitting device comprises an emitting coil, the wireless power receiving device comprises a receiving coil, the emitting coil is symmetrical with the receiving coil, and the wireless power emitting device and the wireless power receiving device perform wireless power transmission through electromagnetic induction.

In some embodiments, the wireless power emitting device and the wireless power receiving device each comprise a resonator, the resonator of the wireless power emitting device is configured to emit a diffuse field electromagnetic wave, and the resonator of the wireless power receiving device is configured to receive electric energy wirelessly at a frequency matching the diffuse field electromagnetic wave.

In some embodiments, the wireless power emitting device comprises an emitting coil, the wireless power receiving device comprises a receiving coil, the emitting coil is configured to vibrate at a predetermined frequency to output a non-radiating magnetic field, the receiving coil has at a natural frequency which is the same as the predetermined frequency of the emitting coil so that the receiving coil can receive energy from the non-radiating magnetic field, and the wireless power emitting device and the wireless power receiving device perform wireless power transmission through electromagnetic coupling resonance.

In some embodiments, the wireless power emitting device comprises an electromagnetic wave generator, the wireless power receiving device comprises a receiving antenna, and the wireless power emitting device and the wireless power receiving device perform wireless power transmission through radio waves.

In some embodiments, the wireless power receiving device further comprises a rectification filter module, and the wireless power receiving device is configured to wirelessly receive electric energy from the wireless power emitting device to form AC electric energy, and the rectification filter module is configured to convert the AC electric energy into DC electric energy and output the DC electric energy to the electrodes.

In some embodiments, the wireless power receiving device further comprises a polarity reversal circuit and a polarity reversal controller which are connected electrically, two inputs of the polarity reversal circuit are electrically connected to two outputs of the polarity reversal controller respectively, two outputs of the polarity reversal circuit are electrically connected to the electrodes respectively, and the two outputs of the polarity reversal controller are switched regularly to output a high level and a low level respectively to make the polarity reversal circuit to switch polarities of the two outputs regularly, so as to realize regular polarity reversal of the electrodes.

In some embodiments, the polarity reversal circuit comprises a first triode, a second triode, a first MOS transistor, a second MOS transistor, a third MOS transistor and a fourth MOS transistor, the first triode is electrically connected to the third MOS transistor and the fourth MOS transistor, the second triode is electrically connected to the first MOS transistor and the second MOS transistor, and the polarity reversal circuit together with the polarity reversal controller sequentially through a current sampling circuit and a constant-current control circuit forms a closed circuit.

In some embodiments, the wireless power receiving module further comprises a DCDC voltage stabilizing module electrically connected to the rectification filter module and the electrodes, and the DCDC voltage stabilizing module is configured to increase or decrease a DC voltage output by the rectification filter module to form a constant voltage, which is then output to the electrodes.

In some embodiments, the wireless power receiving module further comprises a constant current module electrically connected to the rectification filter module and the DCDC voltage stabilizing module, the constant current module cooperates with a sampling circuit to output a variable voltage to the DCDC voltage stabilizing module through an operational amplifier, and the variable voltage changes an output voltage of the DCDC stabilizing module to keep a current received by the electrode constant.

In some embodiments, the sodium hypochlorite generator further comprising a cover, wherein the base is configured to be fixedly installed in a pre-buried wall hole, the electrode insert is detachably inserted into an insert accommodating cavity of the base, the electrodes are communicated with an outside through voids defined through the cover, the wireless power emitting device is disposed outside the base and is close to the insert accommodating cavity, and the wireless power receiving device corresponding to the wireless power emitting device is disposed in the insert body.

In some embodiments, a cylinder extends from an end, close to the base, of the insert body, the wireless power receiving device is accommodated in an interior cavity of the cylinder, installation grooves for installing the electrodes are formed in an opposite end, away from the base, of the insert body, two protrusions are disposed outside the cylinder of the insert body, spiral grooves are formed in the insert accommodating cavity of the base, a clamping portion is disposed at an end of each of the spiral grooves, and the insert body is inserted into the base through cooperation of the protrusions and the spiral grooves and is fixed through cooperation of the protrusions and the clamping portions.

In some embodiments, wherein a cylinder extends from an end, close to the base, of the insert body, the wireless power receiving device is accommodated in an interior cavity of the cylinder, installation grooves for installing the electrodes are formed in an opposite end, away from the base, of the insert body, an external thread is disposed outside the cylinder of the insert body, an internal thread is disposed in the insert accommodating cavity of the base, and the insert body is fixedly installed in the base through threaded connection.

In some embodiments, an installation slot is formed in the interior cavity of the cylinder, the wireless power receiving device comprises a device body and an elastic lug provided on the device body, and the wireless power receiving device is slidably installed in the interior cavity of the cylinder through the elastic lug being slidably received in the installation slot.

In some embodiments, the sodium hypochlorite generator further comprising a turbulent flow passage which penetrates through the base and the insert body to be communicated with a working space of the electrodes.

In some embodiments, a flange extends from the electrode insert towards the cover, a threaded hole is defined in the flange, and the cover is fixedly installed on the insert body with a screw.

In some embodiments, a flange extends from the insert body towards the cover, an external thread is disposed on the flange, an internal thread is disposed in the cover, and the cover is fixedly installed on the insert body through a threaded connection.

In some embodiments, a flange extends from the base towards the cover, an external thread is disposed on the flange, an internal thread is disposed in the cover, and the cover is fixedly installed on the base through a threaded connection.

In some embodiments, an external thread is disposed on the base, and the base is fixedly installed in the pre-buried wall hole through a locking nut.

In some embodiments, an emitting device accommodating cavity extends from a side, opposite to the insert accommodating cavity, of the base, an installation slot is formed in the emitting device accommodating cavity, the wireless power emitting device comprises a device body and an elastic lug installed on the device body, and the wireless power emitting device is slidably installed in the emitting device accommodating cavity through the elastic lug being slidably received in the installation slot.

The sodium hypochlorite generator provided by the invention has the following beneficial effects:

According to the sodium hypochlorite generator, the wireless power emitting device installed in the base and the wireless power receiving device installed in the insert body are used to wirelessly supply power to the electrodes so as to drive the electrodes, so the electrode insert can be electrically connected to an external power supply without a wire penetrating through the base, and a position for pre-storing the wire does not need to be reserved in the insert accommodating cavity of the base anymore, thus reducing the size of the sodium hypochlorite generator, and the sealing performance of the base is improved by eliminating a wire hole. Moreover, the electrode insert is detachably installed on the base and does not need to be fixedly connected to the base anymore due to using of wireless power receiving means, so that the in disassembly flexibility of the electrode insert is greatly improved; and the airtightness of a joint of the power receiving device and the power supply is not an issue anymore, so that the sodium hypochlorite generator based on wireless power transmission is more flexible to use, and the production design cost and maintenance cost are reduced.

A sodium hypochlorite generator provided by the invention will be further described below in conjunction with the accompanying drawings. It should be noted that the technical solution and design principle of the invention will be expounded in detail below with reference to an optimal technical solution.

It should be noted that, in the whole description of the invention, directional terms such as “center”, “crosswise”, “lengthwise”, “lateral direction”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “perpendicular”, “horizontal”, “top”, “bottom”, “internal”, “external”, “clockwise”, “anticlockwise” are used to indicate directional or positional relationships based on the accompanying drawings, or directional or positional relationships commonly expressed by those skilled in the art merely for the purpose of facilitating and simplifying the description of the invention, do not indicate or imply that devices or elements referred to must be in a specific direction or be configured and operated in a specific direction, and thus should not be construed as limitations of the specific protection scope of the invention.

1 FIG. 2 FIG. 7 FIG. 0 0 0 4 35 3 0 0 First, referring to,andwhich illustrate a sodium hypochlorite generatoraccording to an embodiment of the present disclosure. The sodium hypochlorite generatoris used for sterilization of a swimming pool, hot tub or a bathtub. In this embodiment, the sodium hypochlorite generatoris fixed to a wall of the swimming pool, hot tub or the bathtub through the cooperation of a locking nutand an external threadon a basewhich is inserted into a pre-buried hole reserved in the wall of the swimming pool, hot tub or the bathtub. Clearly, the installation manner based on the cooperation of the locking nut and the external thread illustrated in the invention is merely one of multiple manners in which the sodium hypochlorite generator is installed in the hole of the wall of the swimming pool, hot tub or the bathtub, and the sodium hypochlorite generator may also be installed in the hole of the wall of the swimming pool, hot tub or the bathtub in other manners such as through buckles or screws, which will no longer be detailed here. In addition, the sodium hypochlorite generatormay also be installed at the bottom of the bathtub, hot tub or the swimming pool, or be installed in or near the end of a water inlet pipe, as long as the sodium hypochlorite generatoris immersed in water in the bathtub, hot tub or the swimming pool.

1 FIG. 2 FIG. 3 FIG. 5 FIG. 0 1 2 3 2 32 3 22 21 22 12 1 21 1 21 1 21 21 21 6 3 5 22 6 5 21 21 6 5 21 21 21 21 Specifically, referring to,,and, the sodium hypochlorite generatorprovided by the invention specifically comprises a cover, an electrode insertand a base, wherein the electrode insertis detachably inserted into an insert accommodating cavityof the baseand comprises an insert bodyand a preset number of electrodesinstalled on the insert body. A plurality of water holesare formed in the cover, and the electrodesare communicated with the outside through the cover, that is, the electrodesare exposed to water in the bathtub, hot tub or the swimming pool. The covermay be an individual cover, or be a grid or screen that covers the electrodesto ensure sufficient contact of the electrodesand water and protect and isolate the electrodesto some extent, so that potential safety hazards and damage to the electrodes caused by direct contact of humans and the electrodes in use are prevented. A wireless power emitting deviceis disposed outside the baseand is close to the insert accommodating cavity, a wireless power receiving deviceis disposed in the insert bodyand corresponds to the wireless power emitting device. The wireless power receiving deviceis electrically connected to the electrodes, and an external power supply drives the electrodesto perform electrolysis through the wireless power emitting deviceand the wireless power receiving device. In addition, the number of the electrodesis related to the power of wireless transmission and is not limited in principle. In this specific embodiment of the invention, the number of the electrodesis five, and the polarities of the five electrodesare “positive”, “negative”, “positive”, “negative” and “positive” or “negative”, “positive”, “negative”, “positive” and “negative”. The number and polarities of the electrodesmay be set as needed, and will no longer be detailed here.

3 3 6 3 2 3 3 2 3 2 3 2 3 2 3 Preferably, the baseis fixedly installed on a wall of the bathtub, hot tub or the swimming pool or at a proper position of the bottom of the bathtub, hot tub or the swimming pool, a power line is fixedly connected to the baseand continuously supplies power to the wireless power emitting deviceinstalled in the base, and in this case, the electrode insertmay be fixedly installed on the baseor in close contact with the base. With the development of the wireless power transmission technique, wireless power transmission may be realized as long as the electrode insertand the baseare within a certain distance, so the connection relationship between the electrode insertand the baseis not limited in the invention. The electrode insertmay be partially inserted into the baselike in this embodiment, or the electrode insertand the baseare designed to be in other matching shapes. Next, different embodiments will be specifically introduced according to different wireless power transmission manners:

6 5 In a first embodiment of the invention, an emitting coil and a drive circuit are disposed in the wireless power emitting device, a receiving coil is disposed in the wireless power receiving device, and the emitting coil is symmetrical with the receiving coil. Through the coils, the wireless power emitting device and the wireless power receiving device can realize wireless power transmission through electromagnetic induction.

6 5 6 5 In a second embodiment of the invention, the wireless power emitting deviceand the wireless power receiving deviceeach comprise a resonator. The resonator of the wireless power emitting deviceemits a diffuse field electromagnetic wave, and the resonator of the wireless power receiving devicereceives power wirelessly at a frequency matching the diffuse field electromagnetic wave. Through this power transmission method, electromagnetic waves emitted by a resonant circuit of the wireless power emitting device are diffused in a whole space in all directions in open, and a circuit of the wireless power receiving device resonates at this specific frequency to realize energy transmission.

6 5 6 5 In a third embodiment of the invention, the wireless power emitting devicecomprises an emitting coil, the wireless power receiving devicecomprises a receiving coil, the emitting coil vibrates at a predetermined frequency to output a non-radiating magnetic field, the receiving coil has at a natural frequency which is the same as the predetermined frequency of the emitting coil so that the receiving coil can receive energy from the non-radiating magnetic field. The wireless power emitting deviceand the wireless power receiving devicerealize wireless power transmission therebetween through electromagnetic coupling resonance.

6 5 6 5 In a fourth embodiment of the invention, the wireless power emitting devicecomprises an electromagnetic wave generator, the wireless power emitting devicecomprises a receiving antenna, and the wireless power emitting deviceand the wireless power receiving devicerealize wireless power transmission through radio waves.

5 5 The four embodiments illustrated above are for the purpose of realizing wireless power transmission, and other available wireless power transmission methods will no longer be detailed one by one here. Further, due to the properties of wireless power transmission, electric energy received by the wireless power receiving device is AC electric energy. Because of the alternate frequency of the AC electric energy, the polarities of the electrodes have to be switched frequently if the AC electric energy is directly used to drive the electrodes to work, so a rectifying circuit is disposed in the wireless power receiving deviceto convert the AC electric energy into DC electric energy to drive the electrodes to work, so as to keep the polarities of the electrodes constant. In addition, due to the fact that the wastage of positive electrodes is different from the wastage of negative electrodes during the electrolysis process, a polarity reversal circuit and a polarity reversal controller for driving the polarity reversal circuit to work may be disposed in the wireless power receiving deviceto switch the polarities of the electrodes regularly. To realize polarity reversal, two inputs of the polarity reversal circuit are electrically connected to two outputs of the polarity reversal controller respectively, two outputs of the polarity reversal circuit are electrically connected to the electrodes respectively, and the two outputs of the polarity reversal controller are switched regularly to output a high level and a low level respectively to make the polarity reversal circuit switch the polarities of the two outputs regularly, so as to reverse the polarities of the electrodes regularly, so that the service life of the electrodes is prolonged. In this embodiment, the electrodes are titanium electrodes, or electrodes made of other electrode materials.

8 FIG. 9 FIG. 8 FIG. 9 FIG. Specifically, referring toandwhich illustrate a specific circuit for driving the electrodes to work to implement wireless power transmission, whereinillustrates a specific circuit diagram of the wireless power emitting device, andillustrates a specific circuit diagram of the wireless power receiving device:

6 601 602 603 603 7 10 601 3 3 8 13 11 602 4 4 1 17 18 19 12 4 8 602 601 1 7 603 2 2 9 10 11 6 In detail, the wireless power emitting devicecomprises a power supply moduleelectrically connected to the external power supply, a waveform output module, an amplification moduleand an LC oscillation circuit connected to an output of the amplification module. The LC oscillation circuit comprises an emitting coil Land a matching capacitor C. The power supply modulecomprises a processor U, and an external circuit electrically connected to the processor Uand composed of a resistor R, a capacitor Cand a capacitor C. The waveform output modulecomprises a single-chip microcomputer U, and an external circuit electrically connected to the single-chip microcomputer Uand composed of a crystal oscillator Y, a capacitor C, a capacitor C, a capacitor Cand a capacitor C, wherein the single-chip microcomputer Uis specifically STM, and the waveform output moduleis electrically connected to the power supply modulethrough a resistor Rand a diode D. The power amplification modulecomprises a processor U, and an external circuit electrically connected to the processor Uand composed of a resistor R, a resistor Rand a resistor R. In this embodiment, an electric field output frequency of the wireless power emitting deviceis 75.2 KHZ.

5 501 502 503 504 505 506 507 508 509 501 2 502 1 2 503 2 4 5 6 19 504 2 2 1 8 4 13 14 17 20 3 4 506 3 3 8 5 10 16 507 1 1 2 3 15 7 12 505 1 2 3 4 5 6 10 12 20 21 16 18 508 13 22 19 509 5 5 6 11 9 14 18 1 5 2 6 1 2 503 507 509 506 504 504 504 1 2 4 6 505 1 1 3 6 4 5 2 2 1 4 5 3 6 2 2 1 509 508 508 508 504 In detail, the wireless power receiving devicecomprises a receiving module, a matching capacitor module, a rectification filter module, a DCDC constant-voltage constant-current module, a polarity reversal circuit module, a controller power supply module, a polarity reversal control module, a current sampling moduleand a constant-current control module, wherein the receiving modulecomprises a receiving coil L, the matching capacitor modulecomprises a capacitor Cand a capacitor Cwhich are connected in parallel, the rectification filter modulecomprises a diode D, a capacitor C, a capacitor C, a capacitor Cand a capacitor Cwhich are electrically connected in sequence. The DCDC constant-voltage constant-current modulecomprises a processor U, and an external circuit electrically connected to the processor Uand composed of a resistor R, a capacitor C, a diode D, a capacitor C, a capacitor C, a capacitor C, a capacitor C, a resistor Rand a resistor R. The controller power supply modulecomprises a chip U, and an external circuit electrically connected to the chip Uand composed of a resistor R, a diode D, a capacitor Cand a capacitor C. The polarity reversal control modulecomprises a single-chip microcomputer U, and an external circuit electrically connected to the single-chip microcomputer Uand composed of a resistor R, a diode D, a capacitor C, a capacitor Cand a capacitor C. The polarity reversal circuit modulecomprises a triode Q, a triode Q, an MOS transistor Q, an MOS transistor Q, an MOS transistor Q, an MOS transistor Q, a resistor R, a resistor R, a resistor R, a resistor R, a resistor Rand a resistor R. The current sampling modulecomprises a resistor R, a resistor Rand a resistor R. The constant-current control modulecomprises an amplifier U, and a resistor R, a resistor R, a capacitor C, a capacitor C, a resistor R, a capacitor Cand a diode Dwhich are electrically connected to the amplifier U. The receiving coil Lconverts electromagnetic energy emitted by the wireless power emitting moduleinto high-frequency AC electric energy together with the capacitor Cand the capacitor C, then the high-frequency AC electric energy is converted into DC electric energy by the rectification filter module, one path of the DC electric energy, after being stabilized, supplies low-voltage power to the polarity reversal controller moduleand the constant-current control modulevia the controller power supply module, and the other path of the DC electric energy is output through the DCDC constant-voltage constant-current module. The DCDC constant-voltage constant-current moduleis arranged for maintaining the utilization efficiency of electric energy; due to the fact that, when the concentration of salt in water is low, the voltage and power of the circuit system will be increased in a constant-current state, which makes the generation efficiency of sodium hypochlorite low, so the maximum output voltage needs to be limited, and that, when the concentration of salt in water is high, the electrical conductivity of water is high, which will increase the current in case of constant-voltage power supply, thus shortening the service life of the electrodes, so the DCDC constant-voltage constant-current moduleis used to limit voltage and current output. The triode Q, the triode Q, the MOS transistor Qand the MOS transistor Qin the polarity reversal circuit moduleare connected to output ports G, B, LG and LB of the single-chip microcomputer Urespectively. When the output ports G, B, LG and LB of the single-chip microcomputer Uoutput a high level, a low level, a low level and a high level respectively, the MOS transistor Qand the MOS transistor Qare turned on, the MOS transistor Qand the MOS transistor Qare turned off, and in this case, an output a of a terminal Jconnected to the electrodes is a negative terminal, and an output b of the terminal Jis a positive terminal; when the output ports G, B, LG and LB of the single-chip microcomputer Uoutput a low level, a high level, a high level and a low level respectively, the MOS transistor Qand the MOS transistor Qare turned on, the MOS transistor Qand the MOS transistor Qare turned off, and in this case, the output a of the terminal Jconnected to the electrodes is a positive terminal, and the output b of the terminal Jis a negative terminal. The single-chip microcomputer Uoutputs high and low levels repeatedly via the output ports G, B, LG and LB every preset time through a counter so as to realize polarity reversal of the electrodes. The constant-current control modulecompares a sampling result of the current sampling modulewith a preset value; when the sampling result of the current sampling moduleis lower than the pre-set value, no voltage is output; when the sampling result of the current sampling moduleis higher than the pre-set value, a voltage is output to control the DCDC constant-voltage constant-current moduleto decrease the output voltage, so that the purpose of constant current is realized.

Next, other mechanical structures of the specific embodiment of the sodium hypochlorite generator provided by the invention will be introduced:

3 FIG. 4 FIG. 5 FIG. 22 3 22 226 3 227 226 5 223 21 3 22 222 226 22 321 32 3 3211 321 22 3 222 321 222 3211 Specifically, referring to,and, the installation relationship of the insert bodyand the basein this embodiment will be introduced: the insert bodycomprises a cylinderextending from an end thereof close to the base, an interior cavityof the cylinderis configured to accommodate the wireless power receiving device. Installation groovesfor installing the electrodesare formed in an end, away from the base, of the insert body. Two protrusionsare disposed outside the cylinderof the insert body, spiral groovesare formed in the insert accommodating cavityof the base, a clamping portionis disposed at an end point of each of the spiral grooves, and the insert bodyis inserted into the basethrough cooperation of the protrusionsand the spiral groovesand is fixed through cooperation of the protrusionsand the clamping portions.

22 3 202 22 301 3 22 3 3 FIG.A In addition, the invention further provides another installation relationship of the insert bodyand the base, which is specifically as follows: referring to, an external threadis disposed outside the cylinder of the insert body, an internal threadis disposed in the insert accommodating cavity of the base, and the insert bodyis fixedly installed in the basethrough a threaded connection.

0 31 3 224 22 21 224 0 4 FIG. 5 FIG. 6 FIG. Preferably, the sodium hypochlorite generatorfurther comprises a turbulent flow passage. Specifically, referring to,and, the turbulent flow passage comprises a first passageformed in the baseand a second passageformed in the insert body, and the first passageis communicated with the second passage. The turbulent flow passage is communicated with an external water source in order to supply a turbulent water flow into a working space of the electrodes for the purpose of dispersing sodium hypochlorite in the working space of the electrodes to fulfil a better sterilization effect and preventing an excessively high local concentration of the sodium hypochlorite, which may otherwise cause corrosion of the sodium hypochlorite generator.

3 FIG. 4 FIG. 2 FIG.A 1 2 22 2 1 221 1 22 11 1 221 1 22 201 101 1 1 22 1 22 Specifically, referring toand, the installation relationship of the coverand the electrode insertwill be introduced. A flange extends from the insert bodyof the electrode inserttowards the cover, a threaded holeis formed in the flange, and the coveris fixedly installed on the insert bodywith a screw which extends through a counterboredefined in the coverto be engaged in the threaded hole. Alternatively, the covermay also be fixedly installed on the insert bodythrough a threaded connection. For example, an external thread(as shown in) is disposed on the flange, an internal threadis disposed in the cover, the coveris fixedly installed on the insert bodythrough a threaded connection. Understandably, the covermay also be fixedly installed on the insert bodythrough a threaded connection or a buckled connection, which will no longer be detailed here.

2 FIG.B 1 2 3 3 1 302 101 1 1 3 2 1 3 2 3 Understandably, referring to, the covernot only can be fixedly installed on the electrode insert, but also can be fixedly installed to the base. Specifically, a flange extends from the basetoward the cover, an external threadis disposed on the flange, an internal threadis disposed in the cover, the coveris fixedly installed on the basethrough a threaded connection, and in this case, the electrode insertis sealed in a space formed by the coverand the base. According to different requirements of different wireless power transmission methods, the connection relationship of the electrode insertand the basemay be adjusted flexibly.

7 3 71 3 FIG. 3 FIG.A Preferably, a sealing gasketis disposed in an installation gap between the baseand the wall hole, as shown inand.

3 FIG. 4 FIG. 5 FIG. 7 FIG. 5 6 33 32 3 34 33 6 61 6 33 61 34 225 227 226 22 5 51 5 227 51 225 Finally, referring to,,and, the installation method of the wireless power receiving deviceand the wireless power emitting devicewill be introduced in detail. Wherein, an emitting device accommodating cavityextends from a side, opposite to the insert accommodating cavity, of the base, an installation slotis formed in the emitting device accommodating cavity, the wireless power emitting devicecomprises a device body and an elastic lugprovided on the device body, and the wireless power emitting deviceis slidably installed in the emitting device accommodating cavitythrough the elastic lugsinserted into the installation slots. Similarly, one or multiple installation slotsare formed in the cavityof the cylinderof the insert body, the wireless power receiving devicecomprises a device body and one or multiple elastic lugsprovided on the device body, and the wireless power receiving deviceis slidably installed in the cavityof the cylinder through the elastic lugsinserted into the installation slots. The above installation method of the wireless power receiving device and the wireless power emitting device is only one of multiple possible installation methods, and the wireless power receiving device and the wireless power emitting device may also be fixedly installed in the accommodating cavities through buckles, interlocking means, threads or the like, which will no longer be detailed here.

2 3 2 3 According to the sodium hypochlorite generator provided by the invention, the design of wire-free holes of the electrode insertand the baseis realized through wireless power transmission, so that the overall size is reduced, the overall waterproofing and sealing performance of the sodium hypochlorite generator is improved, and the sodium hypochlorite generator is easy to disassemble and maintain; and the electrode insertis independent of the baseand can be taken out of water, so that the problem of difficult change of the electrodes underwater is solved.

The above implementations are merely preferred ones of the invention. It should be noted that the above preferred implementations should not be construed as limitations of the invention, and the protection scope of the invention should be subject to the scope defined by the claims. Those ordinarily skilled in the art can make various improvements and embellishments without departing from the spirit and scope of the invention, and all these improvements and embellishments should also fall within the protection scope of the invention.